ISO Tool v1.964 is released. ISO Tool is a handy homebrew application that lets you manage and backup your UMD's straight from your PSP. ISO Tool completes by Japanese Developer Takka.

ISO Tool v1.964 Changelog:
[NEW] startup check disabled with MS
[BUG] 09g of the PIL in the body type of the fixed prx copy of the group had failed
[BUG] Prometheus ISO Loder v1 when it started, CWCheat Fixed ID of failing to recognize
[NEW] v2/v1 switch to change from R to R trigger buttons
[NEW] M33 v2/v1 driver and modify it to save the settings
※ L or R trigger when you start keeping the button configuration is reversed

Download: ISO Tool v1.964
Source: Here